CNBC breaks news of Carl's Jr.'s new All-Natural Turkey Burger line

Roughly a year after becoming the first major fast-food chain to launch all-natural beef patties, Carl's Jr. has its sights on overhauling another protein: turkey burgers.

On Wednesday, the CKE Restaurants unit will launch a line of all-natural turkey burgers, raised without antibiotics, in restaurants nationwide. Carl's Jr. is touting the new line as a first for the fast-food industry.